gcc/testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c

   1 /* { dg-do run { target { powerpc_fprs && { ilp32 && dfprt } } } } */
   2 /* { dg-options "-std=gnu99 -O2 -fno-strict-aliasing" } */
   3
   4 /* Testcase to check for ABI compliance of parameter passing
   5    for the PowerPC ELF ABI for decimal float values.  */
   6
   7 extern void abort (void);
   8 int failcnt = 0;
   9
  10 /* Support compiling the test to report individual failures; default is
  11    to abort as soon as a check fails.  */
  12 #ifdef DBG
  13 #include <stdio.h>
  14 #define FAILURE { printf ("failed at line %d\n", __LINE__); failcnt++; }
  15 #else
  16 #define FAILURE abort ();
  17 #endif
  18
  19 typedef struct
  20 {
  21   int pad;
  22   _Decimal32 d;
  23 } d32parm_t;
  24
  25 typedef struct
  26 {
  27   unsigned int gprs[8];
  28   double fprs[8];
  29 } reg_parms_t;
  30
  31 reg_parms_t gparms;
  32
  33 typedef struct sf
  34 {
  35   struct sf *backchain;
  36   int a1;
  37   unsigned int slot[200];
  38 } stack_frame_t;
  39
  40 /* Wrapper to save the GPRs and FPRs and then jump to the real function.  */
  41 #define WRAPPER(NAME)                                                   \
  42 __asm__ ("\t.globl\t" #NAME "_asm\n\t"                                  \
  43          ".text\n\t"                                                    \
  44          ".type " #NAME "_asm, @function\n"                             \
  45          #NAME "_asm:\n\t"                                              \
  46          "lis 11,gparms@ha\n\t"                                         \
  47          "la 11,gparms@l(11)\n\t"                                       \
  48          "st 3,0(11)\n\t"                                               \
  49          "st 4,4(11)\n\t"                                               \
  50          "st 5,8(11)\n\t"                                               \
  51          "st 6,12(11)\n\t"                                              \
  52          "st 7,16(11)\n\t"                                              \
  53          "st 8,20(11)\n\t"                                              \
  54          "st 9,24(11)\n\t"                                              \
  55          "st 10,28(11)\n\t"                                             \
  56          "stfd 1,32(11)\n\t"                                            \
  57          "stfd 2,40(11)\n\t"                                            \
  58          "stfd 3,48(11)\n\t"                                            \
  59          "stfd 4,56(11)\n\t"                                            \
  60          "stfd 5,64(11)\n\t"                                            \
  61          "stfd 6,72(11)\n\t"                                            \
  62          "stfd 7,80(11)\n\t"                                            \
  63          "stfd 8,88(11)\n\t"                                            \
  64          "b " #NAME "\n\t"                                              \
  65          ".size " #NAME ",.-" #NAME "\n")
  66
  67 /* Fill up floating point registers with double arguments, forcing
  68    decimal float arguments into the parameter save area.  */
  69 extern void func0_asm (double, double, double, double, double,
  70                        double, double, double, _Decimal64, _Decimal128);
  71
  72 WRAPPER(func0);
  73
  74 void __attribute__ ((noinline))
  75 func0 (double a1, double a2, double a3, double a4, double a5,
  76        double a6, double a7, double a8, _Decimal64 a9, _Decimal128 a10)
  77 {
  78   stack_frame_t *sp;
  79
  80   sp = __builtin_frame_address (0);
  81   sp = sp->backchain;
  82
  83   if (a1 != gparms.fprs[0]) FAILURE
  84   if (a2 != gparms.fprs[1]) FAILURE
  85   if (a3 != gparms.fprs[2]) FAILURE
  86   if (a4 != gparms.fprs[3]) FAILURE
  87   if (a5 != gparms.fprs[4]) FAILURE
  88   if (a6 != gparms.fprs[5]) FAILURE
  89   if (a7 != gparms.fprs[6]) FAILURE
  90   if (a8 != gparms.fprs[7]) FAILURE
  91   if (a9 != *(_Decimal64 *)&sp->slot[0]) FAILURE
  92   if (a10 != *(_Decimal128 *)&sp->slot[2]) FAILURE
  93 }
  94
  95 /* Alternate 64-bit and 128-bit decimal float arguments, checking that
  96    _Decimal128 is always passed in even/odd register pairs.  */
  97 extern void func1_asm (_Decimal64, _Decimal128, _Decimal64, _Decimal128,
  98                        _Decimal64, _Decimal128, _Decimal64, _Decimal128);
  99
 100 WRAPPER(func1);
 101
 102 void __attribute__ ((noinline))
 103 func1 (_Decimal64 a1, _Decimal128 a2, _Decimal64 a3, _Decimal128 a4,
 104        _Decimal64 a5, _Decimal128 a6, _Decimal64 a7, _Decimal128 a8)
 105 {
 106   stack_frame_t *sp;
 107
 108   sp = __builtin_frame_address (0);
 109   sp = sp->backchain;
 110
 111   if (a1 != *(_Decimal64 *)&gparms.fprs[0]) FAILURE     /* f1 */
 112   if (a2 != *(_Decimal128 *)&gparms.fprs[1]) FAILURE    /* f2 & f3 */
 113   if (a3 != *(_Decimal64 *)&gparms.fprs[3]) FAILURE     /* f4 */
 114   if (a4 != *(_Decimal128 *)&gparms.fprs[5]) FAILURE    /* f6 & f7 */
 115   if (a5 != *(_Decimal64 *)&gparms.fprs[7]) FAILURE     /* f8 */
 116   if (a6 != *(_Decimal128 *)&sp->slot[0]) FAILURE
 117   if (a7 != *(_Decimal64 *)&sp->slot[4]) FAILURE
 118   if (a8 != *(_Decimal128 *)&sp->slot[6]) FAILURE
 119 }
 120
 121 extern void func2_asm (_Decimal128, _Decimal64, _Decimal128, _Decimal64,
 122                        _Decimal128, _Decimal64, _Decimal128, _Decimal64);
 123
 124 WRAPPER(func2);
 125
 126 void __attribute__ ((noinline))
 127 func2 (_Decimal128 a1, _Decimal64 a2, _Decimal128 a3, _Decimal64 a4,
 128        _Decimal128 a5, _Decimal64 a6, _Decimal128 a7, _Decimal64 a8)
 129 {
 130   stack_frame_t *sp;
 131
 132   sp = __builtin_frame_address (0);
 133   sp = sp->backchain;
 134
 135   if (a1 != *(_Decimal128 *)&gparms.fprs[1]) FAILURE    /* f2 & f3 */
 136   if (a2 != *(_Decimal64 *)&gparms.fprs[3]) FAILURE     /* f4 */
 137   if (a3 != *(_Decimal128 *)&gparms.fprs[5]) FAILURE    /* f6 & f7 */
 138   if (a4 != *(_Decimal64 *)&gparms.fprs[7]) FAILURE     /* f8 */
 139   if (a5 != *(_Decimal128 *)&sp->slot[0]) FAILURE
 140   if (a6 != *(_Decimal64 *)&sp->slot[4]) FAILURE
 141   if (a7 != *(_Decimal128 *)&sp->slot[6]) FAILURE
 142   if (a8 != *(_Decimal64 *)&sp->slot[10]) FAILURE
 143 }
 144
 145 extern void func3_asm (_Decimal64, _Decimal128, _Decimal64, _Decimal128,
 146                        _Decimal64);
 147
 148 WRAPPER(func3);
 149
 150 void __attribute__ ((noinline))
 151 func3 (_Decimal64 a1, _Decimal128 a2, _Decimal64 a3, _Decimal128 a4,
 152        _Decimal64 a5)
 153 {
 154   stack_frame_t *sp;
 155
 156   sp = __builtin_frame_address (0);
 157   sp = sp->backchain;
 158
 159   if (a1 != *(_Decimal64 *)&gparms.fprs[0]) FAILURE     /* f1 */
 160   if (a2 != *(_Decimal128 *)&gparms.fprs[1]) FAILURE    /* f2 & f3 */
 161   if (a3 != *(_Decimal64 *)&gparms.fprs[3]) FAILURE     /* f4 */
 162   if (a4 != *(_Decimal128 *)&gparms.fprs[5]) FAILURE    /* f6 & f7 */
 163   if (a5 != *(_Decimal128 *)&sp->slot[0]) FAILURE
 164 }
 165
 166 extern void func4_asm (_Decimal32, _Decimal32, _Decimal32, _Decimal32,
 167                        _Decimal32, _Decimal32, _Decimal32, _Decimal32,
 168                        _Decimal32, _Decimal32, _Decimal32, _Decimal32,
 169                        _Decimal32, _Decimal32, _Decimal32, _Decimal32);
 170
 171 WRAPPER(func4);
 172
 173 void __attribute__ ((noinline))
 174 func4 (_Decimal32 a1, _Decimal32 a2, _Decimal32 a3, _Decimal32 a4,
 175        _Decimal32 a5, _Decimal32 a6, _Decimal32 a7, _Decimal32 a8,
 176        _Decimal32 a9, _Decimal32 a10, _Decimal32 a11, _Decimal32 a12,
 177        _Decimal32 a13, _Decimal32 a14, _Decimal32 a15, _Decimal32 a16)
 178 {
 179   stack_frame_t *sp;
 180
 181   sp = __builtin_frame_address (0);
 182   sp = sp->backchain;
 183
 184   /* _Decimal32 is passed in the lower half of an FPR, or in parameter slot.  */
 185   if (a1 != ((d32parm_t *)&gparms.fprs[0])->d) FAILURE          /* f1  */
 186   if (a2 != ((d32parm_t *)&gparms.fprs[1])->d) FAILURE          /* f2  */
 187   if (a3 != ((d32parm_t *)&gparms.fprs[2])->d) FAILURE          /* f3  */
 188   if (a4 != ((d32parm_t *)&gparms.fprs[3])->d) FAILURE          /* f4  */
 189   if (a5 != ((d32parm_t *)&gparms.fprs[4])->d) FAILURE          /* f5  */
 190   if (a6 != ((d32parm_t *)&gparms.fprs[5])->d) FAILURE          /* f6  */
 191   if (a7 != ((d32parm_t *)&gparms.fprs[6])->d) FAILURE          /* f7  */
 192   if (a8 != ((d32parm_t *)&gparms.fprs[7])->d) FAILURE          /* f8  */
 193   if (a9 != *(_Decimal32 *)&sp->slot[0]) FAILURE
 194   if (a10 != *(_Decimal32 *)&sp->slot[1]) FAILURE
 195   if (a11 != *(_Decimal32 *)&sp->slot[2]) FAILURE
 196   if (a12 != *(_Decimal32 *)&sp->slot[3]) FAILURE
 197   if (a13 != *(_Decimal32 *)&sp->slot[4]) FAILURE
 198   if (a14 != *(_Decimal32 *)&sp->slot[5]) FAILURE
 199   if (a15 != *(_Decimal32 *)&sp->slot[6]) FAILURE
 200   if (a16 != *(_Decimal32 *)&sp->slot[7]) FAILURE
 201 }
 202
 203 extern void func5_asm (_Decimal32, _Decimal64, _Decimal128,
 204                        _Decimal32, _Decimal64, _Decimal128,
 205                        _Decimal32, _Decimal64, _Decimal128,
 206                        _Decimal32, _Decimal64, _Decimal128);
 207
 208 WRAPPER(func5);
 209
 210 void __attribute__ ((noinline))
 211 func5 (_Decimal32 a1, _Decimal64 a2, _Decimal128 a3,
 212        _Decimal32 a4, _Decimal64 a5, _Decimal128 a6,
 213        _Decimal32 a7, _Decimal64 a8, _Decimal128 a9,
 214        _Decimal32 a10, _Decimal64 a11, _Decimal128 a12)
 215 {
 216   stack_frame_t *sp;
 217
 218   sp = __builtin_frame_address (0);
 219   sp = sp->backchain;
 220
 221   if (a1 != ((d32parm_t *)&gparms.fprs[0])->d) FAILURE          /* f1      */
 222   if (a2 != *(_Decimal64 *)&gparms.fprs[1]) FAILURE             /* f2      */
 223   if (a3 != *(_Decimal128 *)&gparms.fprs[3]) FAILURE            /* f4 & f5 */
 224   if (a4 != ((d32parm_t *)&gparms.fprs[5])->d) FAILURE          /* f6      */
 225   if (a5 != *(_Decimal64 *)&gparms.fprs[6]) FAILURE             /* f7      */
 226
 227   if (a6 != *(_Decimal128 *)&sp->slot[0]) FAILURE
 228   if (a7 != *(_Decimal32 *)&sp->slot[4]) FAILURE
 229   if (a8 != *(_Decimal64 *)&sp->slot[6]) FAILURE
 230   if (a9 != *(_Decimal128 *)&sp->slot[8]) FAILURE
 231   if (a10 != *(_Decimal32 *)&sp->slot[12]) FAILURE
 232   if (a11 != *(_Decimal64 *)&sp->slot[14]) FAILURE
 233   if (a12 != *(_Decimal128 *)&sp->slot[16]) FAILURE
 234 }
 235
 236 int
 237 main ()
 238 {
 239   func0_asm (1., 2., 3., 4., 5., 6., 7., 8., 9.dd, 10.dl);
 240   func1_asm (1.dd, 2.dl, 3.dd, 4.dl, 5.dd, 6.dl, 7.dd, 8.dl);
 241   func2_asm (1.dl, 2.dd, 3.dl, 4.dd, 5.dl, 6.dd, 7.dl, 8.dd);
 242   func3_asm (1.dd, 2.dl, 3.dd, 4.dl, 5.dl);
 243   func4_asm (501.2df, 502.2df, 503.2df, 504.2df, 505.2df, 506.2df, 507.2df,
 244              508.2df, 509.2df, 510.2df, 511.2df, 512.2df, 513.2df, 514.2df,
 245              515.2df, 516.2df);
 246   func5_asm (601.2df, 602.2dd, 603.2dl, 604.2df, 605.2dd, 606.2dl,
 247              607.2df, 608.2dd, 609.2dl, 610.2df, 611.2dd, 612.2dl);
 248
 249   if (failcnt != 0)
 250     abort ();
 251
 252   return 0;
 253 }